Apple Stock Closes at New High, Most Valuable Company Again

By Jeff Gamet

Jan 31st, 2012 9:44 AM EST

Apple’s stock ended the day on Monday at US$453.01, a new all time high for the company and pushing its market cap up over Exxon Mobil to be the world’s most valuable company again. The previous closing high for Apple came only days ago when it wrapped up on Friday at $447.28.

Apple’s market cap is now sitting at $422.37 billion, well above Microsoft’s $248.45 billion and Google’s $187.83 billion. The company’s market cap puts it above Exxon Mobil’s $409.77 billion, making the Mac and iPhone maker the most valuable company.

The most valuable company ranking has been jumping between Exxon Mobil and Apple for several weeks. Most recently, Apple temporarily took the top spot on January 25 when its value hit $416.7 billion and Exxon Mobil sat at $413 billion.

Apple first became the world’s most valuable company on August 10 with a market cap of #337.2 billion while Exxon Mobil ended the day at $330.8 billion.

Apple is currently trading in the pre-market at $455.62, up 2.61 (0.58%).